Mechanical lubricator.



PATENTED JUNE 26, 1906.

G1 R. WELCH. MEGHANICAL LUBRICATOR.

APPLICATION FILED NOV.18, 1905.

' ./Nl/E/VTORJ TTORNEY.

. and iooding of the *unirian sfrafrne GEORGE E.v wELcE,

OE nE'rnOrr, MICHIGAN.

WECHANECAL LUBRMDATOH..

SpeceationMof-Letters Patent.

Patented June 26, 1906.

Application tiled November 18,1905. Serial No. 287,927.

To @ZZ whom it may concern:

Be it known that I, GEORGE R. WELCH, a citizen of the United States of America, residing at Detroit, in the county of vWayne and State of Michigan, have invented certain new and useful Improvements in Mechanical Lubricators, of which the following is a specifcation, reference being had therein to the accompanying drawings. A

's invention relates to improvements in mechanical or force-feed lubricators; and its object is to provide a lubricator of this class which isespecially vadapted for use upon automobiles, being very pact in its construction, requiring a minimum amount of space, and made independent of the oil-supply tank, so that it may be located in any convenient place.

It is also'an object of the invention to pro` vide the device with means whereby any excess of oil pumped will be returned to the supply-pipe, thus preventing undue pressure parts, and to provide a simple construction which is positive and efficient in its operation and which has several other new and useful features, all as herein` after more fully described, reference being had to the accompanying drawings, in which Figure 1 is a vertical section of a device embodying the invention; Fig. 2, a horizontal section of the same on the line of Fig. l; Fig. 3, a similar section on the line y y of ig. 1. Fig. 4 is a section similar to that of Fig. 1 of a device embodying a modied construction, and Fig. 5 is a horizontal section of the same on the line .e e.

As shown in the drawings,v1 is a circular casing having a reduced and downwardlyextending cylindrical portion provided with a closed lower end 2, forming a cylindrical chamber 3 in said casing, and a series of sockets 4 are formed in said end to receive the screw-threaded ends of tubes (not shown) for conducting oil to the several parts to be lubricated or to any ordinary sight-feed, said sockets communicating with said chamber 3 through discharge-passages 5. In the axis of said end 2 is formed a chamber 6, and extending inward from said chamber is a socket 7 and also an annular chamber 8, outside of and around said socket. The socket 7 communicates with theinterior of the casand the annular chamber communicates therewith through a series of holes 10, corresmall, light, and com-- ing or chamber 8 through an axial passage 9;

l sponding in number to the number of discharge-passages 5.

The inner end of the socket 7y forms a valve-seat for a solid plug-valve 11, which is formed with a series of longitudinal grooves 12 in its side to permit a fluid to pass by the valve when said valve is forced downward from its seat against theaction of a coiled spring 13, interposed between its lower end and a chambered disk 14, screwed into the chamber 6, said disk being provided with a downwardly-extending nipple 15 for the attachment of a supply-pipe (not shown) for supplying oil to said chamber and connected annular chamber 8.

Fitting closely within the chamber 3 in the casing is a rotatable cylindrical member or carrier 16, with its lower end or bottom 17 contacting the bottom of said chamber, and in said bottom is an axial hole A18,registering with the passage 9, and holes 19- and 2O to register, respectively, with the dischargepassages 5 and holes 10 as the carrier is turned. The holes 19 and 20 are placed in radial alinement, so that when hole 19 registers with one of the discharge-passages, as shown in Fig. 1, hole 20 will be closed, owing to the locating of each of the intake-holes '10 half-way between the two ad-jacent dlscharge-passages.

A horizontal partition 21 extends across the carrier at a short distance from its bottom to form an oil-chamber 22 therein, and extending upward at the axis of this partition is a hollow boss, which forms a cylinder 23 for a piston 24. The cylinder opens at its lower end into the oil-chamber. 22 and at its upper end is provided with a stuflingsbox 25, through'which the upper end of the piston extends. The lower end of the piston is recessed to receive one end of a coiled spring 26, the' opposite end of which rests upon the bottom of the oil-chamber,`and this spring forces the piston upward in its cylinder.

Formed integral with the upper edge'of the vertical Wall of the carrier 16 and extending laterally outward therefrom in contact with the horizontal ortion 27 of the enlarged circular upper en 28 ofthe casing is a flange 29, formed with gear-teeth on vits eriphery to mesh with a worm 30, mounted) in bearings formed in the enlarged portion 28 of the casing, and mounted in suitable bearings in said enlarged end of the casing to extend diametrically across the same is afshaft 31, formed with a worm-gear 32 to mesh with the worm IOO IIO

, said passage to the be A centric recedes y3U. This shaft 31 is reduced at its middle to form an eccentric 33, which engages the upper end of the piston 24, and as said shaft is turned operates to force the piston downward in its cylinder against the action of the spring 26. One of the bearings for the transverse shaftI B1 is open at its end, so that the shaft maybe shoved eiidwiseintoplzfce, and a plug 34 is then screwed into the o ien endet the bearing to hold the shaft in place. The carrier 16 with its ring-gear is inserted in the casingA through a. large opening in the top thereof before the shaft 2:31 is inserted, said shaft when in place engaging the upper end of said cairier and holding the saine 'lirmly in place, and said opening closed by ascrewcap 35.

rlhe worin 3() may be driven by any of the well-known means, (not shown) as continuously by a pulley or bevel-gears or intermittently by pawl and ratchet, and this worm in turn rotates the shaft B1 to torce the piston down in its cylinde and turns the carrier 16, upon which said cylinder is mounted ln the position of the parts shown in Fig. 1 the piston is being forced downward by the eccentric 33, and the carrier is turned so that the discliarge-hole 1) in the bottom ofits oilcliamber registers with one of the dischargepassages 5, and thus oilv is being forced by the piston from the chamber out through aiing or other part to be lubricated. The turning of the eccentric is so timed relative to the movement of thc carrier that upon the upward movement of the piston caused by the spring 26 as the ecthe intake-hole 20 in the bottom of the oil-chamber will be brought into line with one of the holes 10, leading into the chamber S, which is in direct communication with the oil-supply, and thus oil will be drawn into said chamber during each upstroke of the piston, the disharge-hole 19 being closed during this tine. T he carrier 'Iits closely in the casing and is held down therein by the shaft 31 and also by the action of the spring .26, thus preventing any oil from passving into the upper part of the casing, and the stuffing-box 25 prevents oil from passing the iston.

rThe oil vforced by the oiler into the several tubes sciewed into the sockets 4 is preferably conducted to any ordinary multi )le sightfeed Where the flow of oil to each earing or other part to be lubricated is regulated, and to prevent flooding o f the parts or other damage should more oil be pumped by the continuous operation v of the oiler than is drawn olf through the sight-feed, owing to the regulation of the flow by the sight-feed or clogging of the parts, the passage Q, forming a connection between the oil-chamber and the supply-pipe through the socket 7, containing the check-valve 11, is provided, the'checkvalve being forced from its seat by any unl l l i,

due pressure in the oil-chamber caused by such oversupply therein and the excess allowed to pass back inte the supply-pipe.

In the modified construction shown in Figs 4 and 5 instead of the annular chamber 8 and holes 10 to conduct the oil into the oilchainbei the socket 7 is provided with a check-valve 36, having an axial passa-ge 37 and a socket 3S in its upper end for a ball SQ, which is adapted to seat at the inner end of said socket and prevent the oil after Ait has been drawn inward through the passage pastl the ball by the action of the piston from being forced outward past the ball. Excess of pressure in the oil-.c iamber will only seat the ball more firmly, and if the pressure is great enough, c: used by' clogging of the parts, to overcome the action of the spring which holds the valve 36 to its seat the whole valve will be moved and the oil will escape past the valve through the grooves in its side.

Having thus fully described my invention, what l claim is# 1. :ln an oiler, the combination of a casing formed with a chamber having an intake and a discharge opening, a rotatable member in said chamber provided with an oil-chamber having openings adapted to register with the openings in the casing, a cylinder carried by said member iii communication with the oilchamber, a piston in said cylinder, and means for rotating said member and actuating the piston` 2. In an oiler, formed with a chamber discharge opening, a

the combination of a casing having an intake and a rotatable member in said chamber provided with an oil-chamber having openings adapted to register with the openings in the casing, a cylinder formed integal with said member' at its axis, and communicating with the oil-chamber, a piston in said cylinder, means engaging the piston to operate the same, and means for rota ting said member.

3. In an oiler, the combinatop of a casing formed with a circular chamber .having an intake and discharge openings in its bottom, a rotatable member adapted to iit closely within said chamber in contact with its. bottom and provided with an' oil-chamber having openings in its bottom to register with the intake and discharge openings as said member is turned, a cylindercarricd by said rotatable member, a piston in said cylinder, and means for actuating the piston and rotating the said member.

4. In an oiler, the combination of a casing formed with a circular chamber having discharge-passages leading from its bottom-and a recess in the lower end of the casing formed with a valve-seat at its inner' end and connected with said chan'iber b v a passage, a valve iitting within said recess and provided with longitudinal grooves in its side, a spring to hold the valve to its seat, a rotatable mem- IIC Ll x

. ber and formed with said ci openings of one series being spaced iterme e those of the other series, 'a rotary member to fit within said chamber saines ber within the chamber engaging the bottom t-liere'ol to close the passages and having openings to register therewith as the member is turned, a cylinder carried by said membei', a piston in said cylinder, and means for rotating said member and actuating the piston.

5. in an oiler, the combination of a casing formed with a circular chamber having an intake and a discharfre-passage inits bottom, a rotatable member `tt1ng within said chaman oll-chamber the bot- 'toni'oi which engages the bottom ofthe chamber in the casing 'to close said passages and is provided with o; fnings to register with said passages as saic member is turned, a cylinider in the axis ofisaid member opening into the oil-chamber, a piston in said cylinder, a shaft mounted in bearings in the casing, an eccentric on said shaft to engage and operate the piston, and means for rotating said inember and shaft.

K in an oiler, the combination cfa casing formed i' ""h a circular chamber and two concentric series oi openings in the bottom of and h ving an oil-chamber the bottom of which contacts the bottom of said chamber in the casing to close said openin sin the casing and is provided with two ho es arranged in radial armement to register with the two series of openings, acylinder on said member opening into the axis of said oil-chamber, a piston in said cylinder, a shaft extending diametrically across thecasing and mounted in bearings therein, an eccentric on said shaft l to enga-ge and actuate the piston, and means for turning saidshaft and rotary member in timed lation to each other.

7. in an oiler, the combination of a casing formed with a circular-chamber, an oil-sn ply chamber, inlet-passage connecting t e said chambers, outlet-passages leading from said circular chamber, and an axial passage connecting the circular chamber and oil-suply chamber, a rotary member adapted to r'it closely in said A circul'airv chamber to close the passages and formed with an oil-chamber naving openmgs adapted to register with said ass-ages, a check-valve in the axial passage4 Aeading from the circular chamber into the oil-supply chamber; a cylinder carried by the said rotary member and communicating with the oil-chamber thereon; a piston in said cylinders; and means ,for rotating saidl member and lactuating said piston in timed relation to each other.

8. in an oiler7 the combination of a vcasing ll formed with a'downvifardly-oxtending cylinl drical portion forming a circular chamber and an enlarged circular 'upper end, the lower end being formed with an intake and a series of discharge-passages communicating with said chamber; a rotary member formed with a cylindrical portion to fit within said chamber and a closed end contactinfr the bottom of the chamber and provided witi openings to registerwith the passages; apartition in thelower end of said member to form an oil-chamber therein; a cylinder formed integral with said partition at its axis and open at its lowcr end into said oil-chamber a piston in saidcylinder a iange on the upper edge of said member provided with `gear-teeth, a transverse shaft mounted in bearings in the up er part of the casing an eccentric on said s aft to operate the piston; and means engaging said gearteeth and said sha-it to actuate both. I

'in an oiler, the combination of a casing i ving a downwardly-extending cylindricai lower end forming a circular chamber and provided with a socket extending inward fron-i its lower end formed with a valve-seat at its inner end, an annui ar chamber surroundi the socket, an external chamber, an axial passage connecting the socket with the internai chamber, a series of openings connecting annular chamber and internal chamber and a series of discharge-passages opening from'the bottom of the internal chamber 5 a valve having longitudinal grooves inits side within said socket; a chambered disk screwed into the external chamber and provided with a downwardly-extending nip-ple, a coiled s ring interposed between the valve and said disk, a rotatable member fitting within said internal chamber of the casing and provided with an oil-chamber in its lower end having openings in its bottom to register with the openings and passages in the casing; a cylininder formed integral with said member and extending upward at the axis of the oilchamber thereof," a piston in said chamber; a stuiiing-box on the upper end of said cylinder g a coiled spring engaging the lower end of the piston to actuate the same in one direction, a shaft mounted in bearings in the casing; an eccentric on the shaft to engage and actuate the piston in the opposite direction an outwardly-extending ange on the'rotary member having gear-teeth; a worm-gear on the shaft; and a Worm to engage said gear and gear-teeth` 1 In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE R. WELCH.

itnesses:

Trios. G. LoNosrAFF, Orro F. BARTHEL. 

